code: def parse_pr_number(title):
      regex = r"(#[0-9]+)"
      matches = re.findall(regex, title)
      if len(matches) == 0:
          print(f"[{title}] Could not parse PR number, ignoring PR")
          return None
      if len(matches) > 1:
          print(f"[{title}] Got two PR numbers, using the last one")
          return matches[-1][1:]
      return matches[0][1:]
  
file_path: audio/tools/release_notes/retrieve_prs.py
imports: import argparse
  import json
  import re
  import subprocess
  from collections import namedtuple
  from os.path import expanduser
  import requests
label_desc: Use image node_id 3 for calling a global function with example usage: parse_pr_number(title) and returns: matches, None, matches